Least Common Multiple (LCM) of 69 and 49
The least common multiple (LCM) of 69 and 49 is 3381.
What is the Least Common Multiple (LCM)?
The LCM of two integers is the smallest positive integer that is divisible by both numbers. It is often used to find common denominators and solve problems involving periodic events.
Formula for LCM
The LCM of two numbers can be calculated using their GCD:
LCM(a, b) = |a × b| ÷ GCD(a, b)
How to Calculate the LCM of 69 and 49?
First, calculate the GCD of 69 and 49 using the Euclidean algorithm. Then use the formula above to find the LCM.
Step-by-Step GCD Calculation
| Step | Calculation |
|---|---|
| 1 | 69 ÷ 49 = 1 remainder 20 |
| 2 | 49 ÷ 20 = 2 remainder 9 |
| 3 | 20 ÷ 9 = 2 remainder 2 |
| 4 | 9 ÷ 2 = 4 remainder 1 |
| 5 | 2 ÷ 1 = 2 remainder 0 |
Examples of LCM Calculations
| Numbers | LCM |
|---|---|
| 56 and 37 | 2072 |
| 183 and 67 | 12261 |
| 11 and 51 | 561 |
| 168 and 187 | 31416 |
| 167 and 66 | 11022 |